Cream-separator gear housing



April 22', 1930. F. c. sANDsTRoM 1,755,841

CREAM SEPARATOR GEAR HOUSING Filed May 18, 192.7 :s sheets-sheet 1 -iyl w/mir @Zvi 15a/1262550271, #,Jal

April 22, 1930. F. c. sANDsTRoM 1,755,841

CREAM SEPARATOR GEAR HOUSING Filed May 18, 1927 5 Sheets-Sheet 2 April 22,1930.` F. QSANDSTROM 1,755,841

CREAM SEPARAfIOR GEAR HQUSING Filed May 18, 1927 $.Sheets-Sheet 3 Patented ApIuFZZ, 1930 vIn\IirEVDsr'rs PATENT eri-Tice FELIXl CONSTANTIN v sANDsTEoM, E (MILWAUKEE, WISCONSIN,v assrcfnonv rro, INTER-v "NATIONALHAEVESTEE' COMPANY, a CORPORATION or yNEW JEE-sEY cEEAM-SEEAEATOE GEAR 'HOUSING Appiicxatiron 'mear/ray 1s, 1927. serial lvojieazsmi,v

The objects 0f this invention are generally Y to;improve,the gear housing structure of a cream separator; to-provide such a structure in which all of the gearing will be housedin dust proof casings; and,` lastly', asv an incident to the enclosed housing construction, to provide an improved splash lubricating system.V

Brieliy, these desirable -obj ects are achieved in a cream separator having a frame, a main gear housing thereonl closed at alll sides-with the exception of one, 'where itis-in direct communication jwith an enlarged secondary enclosed gear casing. The first housing has journaled therein in bearings, a driving shaft which protrudes into the secondary casing where it carries a relatively large driving gear. Inthe ing shaft is aedriven shaft also extending into yhe secondary casing where it carries a sma l pinion in mesh with the large gear mentioned. Means inthe form ofa gear is carried on the driven shaft inside the main housing which `plays in an oil bath intheJ bottom of said lhousing to splash the oil to'thebearings for thedriving and driven shafts` and also into thesecondary ho`usingto lubricate the gears contained therein..

An. illustrative embodiment 'of the Vi'nven-iV tion is; shown in` the ,accompanying ksheets of drawings, wherein:` j j f .I y .l l Figure r1v is a general, vertical'` elevatlonal .view throughY the' machine as Yseen alongl the. line 1--1 of Figure24 when viewed in the di-` re'ctiml of the arrows;

f Figure; 2 11s :a .similar view but looling`Y at firsthousing beneath the driv-V right angles, as seen along 2- .-2, ofi Figure 11.; and f Figure :3 isy an elevational view looking. at

the section Y line ure 2 with the coverA plate for housing removed.` Looking now to the drawings, it will be seen that the improved cream separator em.- bodies a frame or stand kl() havingV .secured thereto in anyapproved manner, a main gear .the secondary ythe back of the'construction shown-in Fig-l housing 11 closed at all sides 'exceptone,f.

where it is open as indicated'at 12.`l :The bottomof the main housingll carries an-V Ioil trough 13 having an orice 14v in its bottom, so that oil may seep upwardlytherethrough fromvanoilbath 15,. the level of which Ais vmaintained,uniform beneath the side walls of thetrough 13.by any approved'form of overflow drain devicel. i.

A driving shaft 171 extends transversely through the upper. end ofthe main housing 1.1, said shaftibeingljournaled in bearings '18V and provided with oil lgroo.ves.19, as best shown in Figure 1. A crank handle 20 is connected thereto atV one end, whereby the shaft may be manually rotated asis usual in these machines.l Arranged.y also in the-.main gear housing. 11 below the driving shaft'17`is `a drivenshaft 21 extendingtransversely and journaled in bearings 22 mounted in `the housing. f

The driving shaft 17 andthe driven shaft 2l both protrude outwardly beyond the gear housingl 11'- at the side where it is openat 12 and extendinto an enlarged, secondary geary housing 23which is closed by a cover plate 24. Inside of this secondary housing the l driving shaft 17 carries a relatively large, loose driving gear 25 driven through lthe me' dium of any suitable form type of clutch 26, while the extended end of` Q11 and thatvthrough the opening 12 it in communication with the interior. of the main .housing 11. It is desirable that the driving gearl 251beof the Yopenwork type, yas. shown, Y

of overrunning .the driven shaft 21 carries arelativelysmall pinion 27 inme'sh with the large drive gear so that oil may be passed through the gear for a purpose later to appear.

The driven shaft 21 has made fast thereto inside of the main gear housing 11, a gear 28, which meshes with a worm pinion 29 formed on a vertical spindle 30 journaled in a lower bearing-31 in the main housing casting 11 and in a neck bearing 32 carried in the upper end of said housing casting, as best shown in Figure 2.v r1`his driven spindle 30 carries and drives the separating bowl 33 which may be nested, as shown, in abowl part 34'formed with the casting 11. Alset screw 35 functions to keep the spindle from riding up out of the bearing 31, as is usual in this art. A draintube 36 leads from the bottom of the bowl part'3-14 through the main Y gear housing and out through the bottom Y thereof, as shown in Figure 1, to drain off 5 of a motor.y

any spilled milk coming from the bowl 33.

The shaft 21 at its otherV end may be extended through the housing 11, as shown at 21 to serveas a power takeo shaftwhen it is desired to operate the gearing by means A cover 37 encloses this shaft kextension 21 when it is not in use. Oildrain ducts 38 lead from the bearings 22 for the shaft'21 back to the oil bath 15. It is also to be noted that the bearings 22 are respectively open to the interior of the main housing lland the secondary housing 23,-` so that oil may be splashed to these bearings and be drained back through the ducts 38, as will be understood. A bracket 39, only partly shown, is carried on the Vcasing 11, whichbracket, in the usual way is adapted to support avsupply receptacle, notshown, over the bowl 33.

` In operating the improved cream separator ofzthis disclosure, the bowl 33 and spindle 30 are removed and a supply of lubricant is poured' through the opening for the neck bearing 32. This oil settles in the bottom of the main gear casing 11, as shown in Figure V1, its level being maintained by the over-flow drain device 16. The clean oil, of course, is at' the upper surface of this bath and it is 'thisupper portion of the oil which jets upwardly through the orifice 14 into the trough V13, there to be picked up by the very rapidly rotating gear 28 playing in this trough. It

will be understood, of course, that the gear ,28 derives itsV rotation by operation of the crank, 20, which turns the shaft 17, gear 25 through the clutch 26, and the pinion 27 and splashedin vapory form upwardly to the ,bearings 18 for the shaft 17, where the oil vvgrooves `19 serve to permit seepage ofthe Oil along the length of the shaftin its journals.

The oil, of' course, also gets into the exposed 1,bearings 22 for the shaft 21 and drains'back `into the oil bath 15. as has been described.

The gear 28 additionally throws the oil to the neck bearing 32, as can be seen. The most important feature of this construction, however, is the splashing of the oil in its cloudlike vapor formthrough the passage 12 and into the secondary gear casing 23, there to circulate freely through the open gear 25 to the clutch 26 and, of course, to the gears 25 and 27 in this secondary housing.

The secondary housing is offset upwardly and outwardly of the main housing in a manner permitting communication through an opening of relatively large size which extends substantially from the top of the main housing to the bottom'v of the odset housing. Thus, when the cover 2li has "been removed along with the gear and clutch parts on the shaft v17,'it is possiblefor a person to have easy access into the main housing with his hand. Such access is of the greatest importance.

Thus, it will be seen that an improved gear housing construction has been provided for machines of this kind, in which all of the gearing is enclosed to exclude dirt and provide effective lubrication lfor the operative parts contained therein. Furthermore, the noise from these rapidly rotating gears is effec-tively deadened, and also the unsightly appearance of exposed gearing is overcome. The greatest advantage, of course, is in maintaining during operation, automatically and constantly, a supply of clean lubricant to the operative parts contained in the secondaryhousing 23. Y Y

`vIt is the intentionto cover all such modifications and variations of the structure herein disclosed which do not materially depart from the spirit and scope of this invention as indicated in the appended claims.

What is claimed as new is:

1. In a cream separator, a frame, a closed housing thereon containing oil in its bottom, a driving shaft journaled in bearings in said housing, a gearloose on one end of the shaft -outside of the housing, a clutch on the shaft for driving said loose gear, a lclosed offset housing surrounding said gear and clutch kand having communication'through a relamovable cover plate for the offset' housing.

2. In a cream separator, a frame, a closed housing thereon, a driving shaft journaled in -bear'ingsinsaidhousing, a gear at vone end of the shaft outsideof said housing, a

second closed housing surrounding said gear and communicating with the first housing, a driven shaft in the first housing, said driven shaft extending into the second housing, a

pinion on the driven shaft in mesh with the gear on the driving shaft, an oil contalnlng trough in' the bottom of vsaid rst. housing, and a gear on the driven shaft and arranged in the lirst housing to rotate through the 011 in said trough to splash the oil therefrom and deliver it to the shaft' bearings and into the second housing to lubricate the gears therein. Y

3. ifi cream separator having a main housing includingan oil sump and a gear operable Y therein to splash the oil, a vertically disposed Y gear housing osetexteriorly from the main l housing and having apart extending there-l a above, said housings,VV being in direct communication through an opening extending from the top of the main housing to the bottom of the offset housing, anda vertically dis* posed removable cover plate included in kthe outer face of the offset housing to permit access into the main housing.,

4. A cream separator having a main housing including an oil sump, a shaft carried in bearings in said main housing, a gear on the shaft, a vertically disposed Yexterior gear housing osetupwardly and outwardly of the main housing, gearing. in the offset housing, said housingsV having communication through an enlarged opening extending substantially from the top of the maing'hou'sing to the bottom of the offset housing, said geary in the main housing splashing the oil into Y` the offset housing, and means for by-passing the oil from said offsethousing underneath one of the shaft bearings and back into the oil sump. Y v Y y 5. A cream separator-having a main hous- Y ing including an oil sump, a ypair of parallel 40' shafts therein, each extending laterally through one side of the housing, an exterior offset housing in communication with the first housing andinto Which the extended ends of the shafts are located, gearing con-l necting the shafts in the offset housing, said offset housing being vertically disposed and having its outer face open, a vertically arranged removable cover plate closing said opening, and means on one of the shafts in the rsthousing to spray oil from the sump therein throughout the first housing and into the offset exterior housing.

In testimony whereof I ax my signature.

FELIX CONSTANTIN SANDSTROM. 

